/**************************************************************************(C)*
 *
 *  This file is part of the GreenHills project
 *  Copyright (C) 2009  Tieto Corporation
 *
 *  This program is free software: you can redistribute it and/or modify
 *  it under the terms of the GNU General Public License as published by
 *  the Free Software Foundation, either version 3 of the License, or
 *  (at your option) any later version.
 *
 *  This program is distributed in the hope that it will be useful,
 *  but WITHOUT ANY WARRANTY; without even the implied warranty of
 *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 *  GNU General Public License for more details.
 *
 *  Not for commmercial use. Only with Tieto permission.
 *
 *  You should have received a copy of the GNU General Public License
 *  along with this program.  If not, see <http://www.gnu.org/licenses/>.
 *
 *************************************************************************(C)*/

#pragma once

#include "gps/gpsposition.h"
#include "clientcoredll.h"

#include <QtCore/QObject>

namespace greenhills {
namespace client {
namespace core {

/** @brief Class representing navigation target
 *
 * This class represents navigation target and provides methods for setting
 * and clearing target. It emits targetChanged signal whenever target position
 * is changed.
 */
class GH_CLIENTCORE_QT_CLASS CTarget : public QObject
{
Q_OBJECT;

public:
    static CTarget *instance();

public:
    static void clear();
    static bool isSet();

    static void setPosition(const gps::CGPSPosition &pTarget);
    static gps::CGPSPosition position();

Q_SIGNALS:
    void targetChanged();
    
private:
    CTarget();

private:
    bool mIsSet;
    gps::CGPSPosition mTarget;

};

} //namespace core
} //namespace client
} //namespace greenhills
